Oar-lock.



W. STBPHENSON. OAR LOGK. APPLICATION F1LBD11PR.30,1912.

l,042289 Patented 001211912.

WZZzn Stephenson although it is to be understood that the inincenso.

WILLIAM STEP'HNSON, OF MADISGN, WISCONSIN.

OAR-Loon.

Specification of Lettersl Patent. Patentedct. 22,1912.

Application led'Aprl 30, 1912. Serial No. 694,064.

To all whom t may concern.'

Be it known that I, WILLIAM STEPHEN- son, a citizen of the United Statesof America, residing at Madison, in the county of Dane and State ofWisconsin, have invented' new and useful Improvements in Oar-Locks, ofwhich the following is a speeiiieation.

My present invention relates to improvements in oar locks and hasparticular application to locks for the oars of fishing boats,

vention is not limited in its useful application to this purpose. I

In carryingout the invention, it' is my purpose to provide a lock of thetype set forth whereby the oars may be manipulated with facility andconvenience to propel thev boat and prevented from detaching themselvesfrom the boat in the event of such oars being released by the operator.

. lt is also my purpose to provide an oar lock which shall embrace the`desired features of simplicity, efficiency and durability and which maybe attached to .any style of oar without changing the structure of suchoar.

With the above andv other objects in view, the invention consists in theconstruction, rombination and arrangement of parts hereinafter set forthin and falling within the scope of the appended claim.

Vln the accompanying drawing; Figure 1 is a side elevation of an oarlock constructed in accordance with the present invention,

' the same being shown applied to an oar.

Fig. 2 is a transverse sectional-view of the same, and Fig. 3 is adetail perspective View of a modified form of the-invention. Fig. flis atransverse sectional View of Fig. 3.

Similar reference characters designate lilze parts throughout theseveral views.

yReferring now to the accompanying drawing in detail, a boat oar isindicated at und attached to t-he body of such oar beyond 'the blade ismy imprcved oar lock designated as an entirety by the letter B.

rThis oar lock, shown, embodies an attaching plate l in the form of anelongated strip and provided with aconcaved surface f" in cross sectiondesigned to coincide with the curvature of the body of the oar'so thatthe attaching plate and oar may present, to all intents and purposes, anintegral structure, the attaching plate l being provided with spacedlongitudinally arranged apertures 3 adapted to receive screws or thellike fastening devices whereby such plate may be rigidly and securelyfastened to the oar. This oar lock also includes a pivot post 4t adaptedto enter a socket in the gunwale of the'boat to which the Voar isapplied. This. pivot post et, is pivotally connected to the,

lower surface of. the attaching plate l and in the present instance isprovided with a bifurcated end portion 5 forming the spaced parallelears 6, 6 between whichis inserted an ear 7 formed on the lower surfaceof the attaching plate, grooves 8, 8 being also formed in the lowersurface of the attaching plate upon the opposite sides of the ear 7 toaccomlnodatethe free extremities of the ears 6 of the pivot post andpermit free motion between the parts, a pivot pin 9 being passed throughalining apertures in the ears 6 and 7 to' secure the parts in theirassembled positions.

In the modified form of the invention shown in Fig. 3, the lower surfaceof the attaching plate l is provided with depending parallel spaced ears10, l0 between 'which is inserted an ear ll carried by the end l2 of thepivot post it, such cars being provided with alining apertures designedto receive a pivot pin lli, the plate 'l in this instance beingpreferably provided with an aperture 14 which aperture arranged betweenthe ears if). l() so as to permit free movement of the parts andminimize friction.

From the foregoing description taken in connection with theaccon'lpanying drawing,

it will be seen that l4 have provided an oar meme@ conform to thecurvature of an oai' anni hevlng formed 1n its und e1 sul-face groovesspaced apart, an ear depending from said plete and connected Jtheretobetween the grooves therein, a pivot poet having a bifurcated endrecelvlng said ezu' and having Jche .free extremities of the limbsthereof disposed Within said grooves, and a pivot pin pesse through thebifurcated end of Said pivot post and said ear. 10

In testimony whereof I eiiix my signature in presence of two Witnesses.

